Bug 864633 - broken site identity info bar. r=bsmith

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extra : rebase_source : 36c4613ed39ab93c33008964ed62bccdcacc9c9c
Bug 864633 - broken site identity info bar part2 (tests from 813418). r=bsmith

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extra : rebase_source : b9acce3f6db1b1560b5e9928e8b3794ead151bc1
Bug 865635 - Use MMonitorTypes instead of MTypeBarrier for type write barriers, r=dvander.